Changes to Getting Started chapter 1

While working on updates to Chapter 1 of the OOo Writer Guide, I
discovered some non-trivial errors in Chapter 1 of Getting Started with
OOo. These errors are in the corresponding LibO documents as well,
unless someone has spotted them there and corrected them. I will let you
know when I have uploaded the corrected OOo GS file so the LibO files
can be corrected too. I'm not sure where the latest iteration of GS with
LibO chapter 1 is.

--Jean